One robber removed a gun from his trousers and demanded the victims' phones in a playground off Hornbeam Close.

One of the boys, 17, handed over his wallet and phone before a friend also handed over his phone.

The offender with the gun handed the items to his accomplice and both walked off towards a wooded area near to Elmwood.

The incident happened between 9pm and 9.20pm on Sunday, September 25.

It is believed the offenders had been in the area about 20 minutes before the offence.

One is described as "possibly white", 5ft 11in tall, of slim build wearing dark clothing. The other is described as being between 5ft 9in and 5ft 10in tall, of chubby build and was wearing a black and white bandana.

Pc Alastair Jones said: "The victims were threatened and intimidated at gunpoint and I want to hear from anyone with information about those responsible.

"We do not know if the gun was a replica or an authentic firearm but regardless this is clearly a very serious offence that will cause the community some concern.

"There are officers in and around the area to reassure the residents and if anyone has any concerns or wants to pass on any information please speak to us."

Anyone with information can call police on 0161 856 7552, or the independent charity Crimestoppers, anonymously, on 0800 555 111.